evolution - Why is polyploidy lethal for some organisms while for ...
Feb 7, 2012 · Polyploidy is the multiplication of number of chromosomal sets from 2n to 3n (triploidy), 4n (tetraploidy) and so on. It is quite common in plants, for example many crops like wheat or Brassica …
Speciation by polyploidy - Biology Stack Exchange
Mar 10, 2013 · Speciation can occur by polyploidy. My understanding of the process is as follows: 'polyploidy is when the number of chromosomes in an organism's cell doubles. This means that the …
Why is polyploidy much more common in plants than in animals?
Nov 6, 2016 · Polyploidy is common in plants than in animals because in animals sex determination mechanism involves number and type sex chromosomes. Polyploidy will interfere with this …
How do we know for sure that Morus nigra (black mulberry) is ...
May 15, 2024 · Wikipedia's Polyploidy and Morus nigra; Description both point out that Morus nigra or black mulberry is tetratetracontaploidic and cite two sources that both point to a third source in Plos …
Why does polyploidy give an evolutionary advantage?
Another example of benefits from polyploidy, this time not in an evolutionary, but in a more individual context, is the fenomenon called hybrid vigor or heterosis. Heterosis is a phenomenon in which a …
Polyploidy, or why plants of different species can produce fertile ...
Feb 26, 2018 · Chromosomal doubling (polyploidy) occurs more frequently in plants and facilitates the fertility of the hybrid offspring. Outcomes of the successful hybridization of different species of plants …
Newest 'polyploidy' Questions - Biology Stack Exchange
May 15, 2024 · Does polyploidy always isolate the polyploids from the diploid source population? I am receiving conflicting information while researching polyploid speciation. On the one hand, some …
Why was polyploidy not lethal in certain octodontid rodents?
Polyploidy arises easily in both animals and plants, but reproductive strategies might prevent it from propagating in certain circumstances, rather than any reduction in fitness resulting from the genome …
cell biology - Does polyploidy always isolate the polyploids from the ...
Aug 19, 2015 · I am receiving conflicting information while researching polyploid speciation. On the one hand, some sources state that a polyploid can only reproduce sexually with polyploids having the …
How does allele dominance work in polyploid organisms?
Dec 16, 2017 · Dominance works in the same way. However, polyploids have complex inheritance patterns! 1. Punnett square for polyploid inheritance One might assume that you would need a four …